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| February |
|---|
| Very Warm: |
| Very Cold: |
| 1895 | 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.39% | 4.33% | 0.00% | 10.44% | 0.00% | 0.46% | 0.77% | 2.33% | 0.00% | 11.72% | 0.81% | 5.57% | 27.92% | 0.00% | 5.33% | 0.00% | 11.12% | 0.00% | 1.04% | 0.00% | 6.32% | 2.84% | 0.00% | 4.21% | 0.00% | 0.32% | 0.93% | 9.92% | 0.00% | 18.90% | 33.08% | 26.19% | 37.28% | 0.00% | 0.08% | 54.74% | 25.35% | 42.52% | 0.17% | 18.41% | 6.69% | 0.00% | 1.10% | 26.62% | 6.37% | 0.00% | 1.45% | 0.00% | 6.68% | 8.37% | 0.00% | 3.51% | 6.11% | 0.00% | 14.70% | 8.43% | 0.04% | 4.35% | 3.60% | 71.95% | 0.00% | 4.30% | 39.33% | 13.01% | 1.10% | 2.04% | 12.50% | 19.29% | 25.46% | 1.63% | 0.00% | 0.00% | 0.94% | 13.37% | 0.00% | 6.72% | 0.00% | 0.00% | 0.00% | 0.66% | 0.93% | 56.89% | 8.14% | 0.00% | 0.00% | 3.89% | 6.88% | 1.10% | 17.30% | 26.74% | 0.00% | 17.90% | 20.01% | 4.76% | 0.00% | 23.00% | 49.11% | 51.99% | 0.00% | 0.45% | 32.95% | 13.50% | 4.83% | 33.13% | 48.98% | 52.47% | 2.06% | 16.12% | 0.00% | 0.00% | 11.75% | 0.93% | 0.00% | 3.42% | 13.06% | 2.77% | 0.00% | 12.93% | 0.44% |
| 53.24% | 0.00% | 2.18% | 0.19% | 64.27% | 15.95% | 19.69% | 31.28% | 41.61% | 23.74% | 58.50% | 0.00% | 6.50% | 2.42% | 0.00% | 16.67% | 14.38% | 22.34% | 25.23% | 24.28% | 0.00% | 0.90% | 15.93% | 0.91% | 8.53% | 0.29% | 0.00% | 18.24% | 21.69% | 1.70% | 0.00% | 0.31% | 0.00% | 0.00% | 65.02% | 0.00% | 0.00% | 5.01% | 37.47% | 17.04% | 0.00% | 54.42% | 6.36% | 1.11% | 43.78% | 0.09% | 3.87% | 16.14% | 0.00% | 2.75% | 0.00% | 1.89% | 27.87% | 5.61% | 26.67% | 0.78% | 0.00% | 1.17% | 0.00% | 0.00% | 16.67% | 26.10% | 0.00% | 30.53% | 2.94% | 24.14% | 0.00% | 1.49% | 24.87% | 21.66% | 2.71% | 15.65% | 5.16% | 22.06% | 3.67% | 0.00% | 0.00% | 0.00% | 2.77% | 2.24% | 2.67% | 0.00% | 0.00% | 56.49% | 44.52% | 10.96% | 0.00% | 0.64% | 0.00% | 1.35% | 9.77% | 0.00% | 0.00% | 0.00% | 47.22% | 1.21% | 0.00% | 0.00% | 14.64% | 7.34% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.45% | 0.44% | 0.23% | 0.00% | 0.00% | 0.00% | 12.74% | 0.39% | 0.00% | 27.88% | 0.38% | 0.00% | 0.77% |
The percentage areas of the contiguous United States are computed based on the climate division data set. Those climate divisions having the monthly average temperature in the top ten percent (> 90th percentile) of their historical distribution are very warm and those in the bottom ten percent (< 10th percentile) are very cold.
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http://www.ncdc.noaa.gov/temp-and-precip/uspa/index.php